Furnace



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Patenfed Dec. 13, I898.

No. 6l5,7l0.

H. E. JANES.

F U R N A C E (Application filed Dec. 9, 1897.)

3 Sheets-Sheet 2.-

(No Model.)

rm: Nonms PETERS 00.. nnoroumow WASHINGTON. n. c.

Patented Dec. 13, I898.

H. E. JANES.

F U R N A C E (Application filed Dec. 9, 1897.)

3 Sheets-Sheet 3.

(No Model.) I

Ill,

NITED STATES PATENT OFFICE.

HENRY E. JANES, OF NEW ROCHELLE, NEW YORK.

. FURNACE.

SPECIFIGATION forming part of Letters Patent No. 615,710,-dated December13, 1898.

Application filed December 9, 1897. Serial No. 661,230. (No model.)

To all whom it may concern.-

Be it known that I, HENRY E. JANEs, a citizen of the United States,residing in New Rochelle, in the county of Westchester, in the State ofNew York, have invented certain new and useful Improvements in Furnaces,of which the following is a specification, reference being had to theaccompanying drawings, forming a part hereof.

This invention-relates to that class of furnaces commonly known ashot-air heaters,.

in which the products of combustion pass from the combustion-chamberinto what is termed a radiator, through which they travel before passingto the chimney in order that they may give up as much as possible oftheir heat to the air which is in contact with the outer Walls of theradiator. It is well understood that in order to obtain the greatestamount of heat from a given quantity of fuel the products of combustionshould be made to travel a long distance within the radiator, and tothat end it has been common heretofore to fix diaphragms or partitionswithin the radiator to make the path of the heated gases as long aspossible without too much reduction of the draft. It is inevitable,however, that dust and soot will accumulate in the radiator and thatunless they are removed from time to time they will prevent radiation ofheat through the walls of the radiator and diminish very largely theheating capacity of the furnace. cation of fixed diaphragms orpartitiouswithin the radiator will render the removal of the accumulated dust andsoot extremely difficult and, indeed, practically impossible withouttaking the radiator apart. For this reason it has now become common toleave out all diaphragms or partitions, thereby sacrificing theadvantages gained by keeping the heated gases within the radiator for aconsiderable time.

It is the object of the present invention to overcome the difficultiesabove alluded to and to make it possible to clean the inside of theradiator readily as often as may be required, and also to make itpossible to employ divi sion-plates within the radiator without makingit difficult to clean same, thereby compelling the heated gases toremain within the radiator for a considerable time and increas- It isobvious that the multipliof dust and soot without difficulty, but todivide the radiator interiorly in such a manner as to compel theproducts of combustion and heated gases to travel over a somewhat longerpath than usual within the radiator. It will be apparent that the meansfor aocom plishing the desired results may be variously constructed andarranged in various ways; but in orderthat the nature of the inventionmay be more clearly explained I have chosen for illustration of theinvention in the accompanying drawings one embodiment of the inventionwhich is both convenient and practical in operation.

In the drawings, Figure 1 is a perspective View of a furnace to which aconvenient and practical form of my improvement is applied, the outercasing and the wall of the radiator being partly broken away. Fig. 2 isa section on the plane indicated by the line 2 2 of Fig. 1. Fig. 3 is asection on the plane indicated by the line 3 3 of Fig. 1. Fig. 4. is avertical section, on a larger scale, on the plane indicated by the line4 4 of Fig. 2. Fig. 5 is a vertical section, also ona larger scale, onthe plane indicated by the line 5 5 of Fig. 2; and Fig.6 is a verticalsection on a plane at right angles to the plane of Fig. 5.

The precise form and construction of the furnace to which myimprovements are applied are immaterial so far as this invention isconcerned; but I have represented in the drawings a furn ace of'portabletype in which a sheet-metal casing A incloses the fire-pot andcombustion-chamber B and the radiator 0, access to the various partsbeing afforded by doors D D D D supported by a plate or casting D in theusual manner. The radiator O is represented as an annular chamber whichsurrounds the upper part of the combustion chamber 13 and communicatestherewith through an opening or passage b. The radiator is also providedwith an exit, as at c, for the escape of the products of combustion tothe chimney-flue. It is especially difficult to clean radiators of theform here shown when fixed partitions are placed in them to lengthen thecourse of the heated gases, and for this reason it is common to omitsuch partitions altogether. Even without partitions it is often a matterof much difficulty to remove the accumulations from the interior of theradiator, and I therefore provide a cleaner within the radiator andmeans whereby it can, be operated conveniently without regard to thepartitions. The cleaner represented in the drawings consists of a stiffbrush or scraper E, which is arranged to travel in close contact withthe wall of the radiator, being held closely against such wallthroughout its movement, thereby scraping or brushing off the dust,soot, and scale.

Asa means for operating the cleaner I have provided a rack F, which isadapted to the shape of the radiator, being curved and preferablyannular when applied to an annular radiator. This is supported in anyconvenient manner and at a suitable point is engaged by a pinion G,which is fixed to a shaft G. The latter is mounted in suitable bearingsand is arranged at a convenient point,

preferably in the walled space covered by the door D, and may be formedat its outer end, as at g, for engagement by a suitable crank or handle.Rotation of the shaftand pinion will cause the cleaner, which issupported by the rack, to travel in contact with the wall of theradiator. A cleaner is preferably arranged for contact with each sidewall of the radiator, and a cleaner may also be arranged for contactwith the bottom of the radiator to clean the same and also to bring allof the accumulated dust, soot, and scale to the cleaning-out door D,through which it may be finally removed.

For the more expeditious cleaning of the radiator I prefer to providemovable floorplates II 11, especially for the upper chamber of theradiator, which is formed by the upper floor-plate II, which itselfconstitutes a partition for the radiator to lengthen the path of theheated gases therein. It will be obvious that these movablefloor-plates, and especially the upper floor-plate H, might be arrangedand operated in various ways; but I prefer the construction andarrangement shown in the drawings, in which each plate II and II isformed as an annular plate, preferably inclined outwardly, as shown,which rests upon suitable bearings, preferably ballbearings it, formedtherefor on the walls of the radiator. Each floor-plate is secured tothe rack F and moves therewith, every part of the floor-plate beingbrought thereby in front of the cleaning-out door D, so that theaccumulations of dust, soot, and scale may be removed therefrom. Theupper plate II is arranged just below the level of the passage oropening I) from the combustion-chamber to the upper part of theradiator, while the plate 11' is arranged near the bottom of theradiator. A scraper I may be arranged,

as represented in Figs. 3 and 5, to rest upon a floor-plate to scrapethe dust, soot, and scale therefrom as the floor-plate travels, so thatthe accumulations may be conveniently removed through the cleaning-outdoor. The scraper may be held to slide in ways 'i '1 secured to thecasting.

For the purpose of forming a long path for the heated gases in theradiator the upper fioorplate is provided with a partition-plate K,which extends to the top of the radiator and may be made to bear thescrapers or cleaners 1C for the upper part of the radiator, While anopening 7.: is formed in the floorplate II near such partition-plate K.A similar partition-plate K is secured to the lower floor-plate II.DoorsL and L close the openings into the radiator above and below thefloor-plate II, respectively. hen the floorplates H and II with thepartitions K and K are properly adjusted, as represented in Fig. 3, theheated gases from the combustionchamber pass into the upper portion ofthe radiator just to the right of the partitionplate K, make a circuitof the upper portion of the radiator, pass into the lower portionthrough the opening 7.; in the floor-plate II to the left of thepartition-plate K and to the right of the partition-plate K of the lowerplate II, and make a circuit of the lower portion of the radiator,passing out through the exit 0, the heated gases thus making twocomplete circuits of the radiator and giving up a large portion of theirheat. The inner doors L and L prevent the escape of the heated gasesfrom the upper and lower portions, respectively, of the radiator intothe space inclosed by the main cleaning-out door -D.

It will be evident that in the use of the construction shown and for thepurpose of starting up the fire the two floor-plates with the respectivepartition-plates may be revolved back from the positions shown to theother no side of the door-neck and the smoke-collar,

respectively, and the doors L L be removed,

so as to give a direct draft.

It will be obvious that although the arrangement of the movablefloor-plates above :15

described is efficient in operation and entirely practicable inconstruction and therefore desirable nevertheless such movablefloorplates, and particularly the upper floor-plate II, might bearranged and adapted for move- :20

ment otherwise than as described for the purpose of enabling them, oreither of them, to be freed readily from the accumulations thereon, theupper plate, for example, being arranged to move so as to discharge theaccumulations thereon upon the lower plate or upon the bottom of theradiator, the main object in View being to arrange the upper plate sothat in use it shall separate the upper portion of the radiator from thelower portion thereof and so that it and the upper portion of theradiator can be cleaned readily. It is to be un derstood, therefore,that as to the floor-plates and as to the cleaners as well I do notintend to limit myinvention to the precise construction and arrangementsof parts which I have shown and described herein.

I claim as my invention- 1. In a hot-air furnace, the combination with acombustion-chamber and a radiator communicating therewith and having asmoke-exit, of a floor-plate between the communication with thecombustion-chamber and said exit and dividing said radiator into upperand lower chambers, said floor-plate having an opening for communicationbetween said chambers and being movable whereby it can be cleaned ofdust and soot.

2. In a hot-air furnace, the combination with a combustion-chamber andan annular radiator communicating therewith and having a smoke-exit, ofan annular floor-plate between the communication with thecombustion-chamber and said exit and dividing said radiator into upperand lower chambers, said floor-plate being mounted to revolve and havingan opening for communication between said chambers,and means to revolvesaid floorplate.

3. In a hot-air furnace, the combination with a combustion-chamber andan annular radiator communicating therewith, of an annular floor-platemounted to revolve in said radiator and dividing said radiator intoupper and lower chambers, said floor-plate hav ing an opening forcommunication between said chambers, and a partition-plate extendingacross and from top to bottom of one of said chambers.

4. In a hot-air furnace, the combination with a combustion-chamber andan annular radiator communicating therewith, of an annular floor-platemounted to revolve in said radiator and dividing said radiator intoupper and lower chambers, said floor-plate having an opening forcommunication between said chambers, and a partition-plate secured tosaid floor-plate and extending to the top of said upper chamber.

5. 'In a hot-air furnace, the combination with a combustion-chamber andan annular radiator communicating therewith, of an annular floor-platemounted to revolvein said radiator and dividing said radiator into upperand lower chambers, said floor-plate having an opening for communicationbetween said chambers, a second annular floor-plate mounted to revolvein the lower chamber of said radiator, and a partition-plate secured tothe. lower floor-plate and extending to the upper floor-plate.

6. In a hot-air furnace, the combination with a combustion-chamber and aradiator communicating therewith, said radiator having a clean-out dooror opening, of a movable floor-plate dividing said radiator into upperand lower chambers, means to operate said movable floor-plate, saidfloor-plate having an opening for communication between said chambers, acleaner mounted to travel within said radiator and means to operate saidcleaner.

7. In a hot-air furnace, the combination with a combustion-chamber andan annular radiator communicating therewith, of an annular floor-platemounted to revolve in said radiator, said floor-plate being inclinedoutwardly.

8. In a hot-air furnace, the combination with a combustion-chamber andan annular radiator communicating therewith, of an annular floor-platemounted to revolve in said radiator, said floor-plate being inclinedoutwardly, and a scraper mounted for contact with said floor-platetoclean the same as it is revolved.

9. In a hot-air furnace, the combination with a combustion-chamber andan annular radiator communicating therewith, of an annular floor-platemounted to revolve in said radiator and a scraper mounted in Ways fixedwith relation to said floor-plate to slide in said ways across saidfloor-plate andto clean the same as the latter is revolved.

10. In a hot-air furnace, the combination with a combustion-chamber anda radiator communicating therewith, of a floor-plate for said radiatorand a cleaner secured to the upper side of the floor-plate in contactwith the wall of said radiator, said floor-plate and cleaner beingmounted to travel Within said radiator, and means to operate saidfloor-plate and cleaner.

11. In a hot-air furnace, the combination with a combustion-chamber andan annular radiator communicating therewith, of an annular floor-platemounted to revolve in said radiator, a cleaner secured to the upper sideof said floor-plate in contact with the Wall of said radiator, a racksecured to said floorplate and cleaner and a pinion and shaft to operatesaid rack.

This specification signed and witnessed this 7th day of December, A. D.1897.

HENRY E. J ANES.

In presence of W. B. GREELEY, A. N. J ESBERA.

